Results 11 to 20 of about 256 (175)
Annals of Glaciology, 2021 The Autonomous Pinger Unit (APU) is an electro-thermal drill with acoustic instrumentation developed for the project EnEx-RANGE in view of a future space mission for the sub-surface exploration of Saturn's moon Enceladus.
Lars Steffen Weinstock +6 more
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The BEAMISH hot water drill system and its use on the Rutford Ice Stream, Antarctica
Annals of Glaciology, 2021 During the 2018/19 Antarctic field season, the British Antarctic Survey (BAS) Basal conditions on Rutford Ice Stream: BEd Access, Monitoring and Ice Sheet History’ (BEAMISH) project drilled three holes through the Rutford Ice Stream, West Antarctica.
Paul G. D. Anker +3 more
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Characterising englacial R-channels using artificial moulins
Journal of Glaciology, 2022 The englacial and subglacial drainage systems exert key controls on glacier dynamics. However, due to their inaccessibility, they are still only poorly understood and more detailed observations are important, particularly to validate and tune physical ...
Annegret Pohle +3 more
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Determining the evolution of an alpine glacier drainage system by solving inverse problems
Journal of Glaciology, 2021 Our understanding of the subglacial drainage system has improved markedly over the last decades due to field observations and numerical modelling. However, integrating data into increasingly complex numerical models remain challenging.
Inigo Irarrazaval +4 more
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A novel approach to process brittle ice for continuous flow analysis of stable water isotopes
Journal of Glaciology, 2018 Brittle ice, which occurs in all intermediate-depth and deep ice cores retrieved from high-latitude regions, presents a challenge for high-resolution measurements of water isotopes, gases, ions and other quantities conducted with continuous flow analysis
REBECCA L. PYNE +10 more
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Antarctic subglacial drilling rig: Part III. Drilling auxiliaries and environmental measures
Annals of Glaciology, 2021 The Antarctic subglacial drilling rig (ASDR) is designed to recover 105 mm-diameter ice cores up to 1400 m depth and 41.5 mm-diameter bedrock cores up to 2 m in length. In order to ensure safe and convenient drilling, drilling auxiliaries are designed to
Xiaopeng Fan +20 more
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New synthetic fiber armored cable for freezing-in thermal ice probes
Annals of Glaciology, 2021 A series of new synthetic armored cables were developed and tested to ensure that they were suitable for use with the RECoverable Autonomous Sonde (RECAS), which is a newly designed freezing-in thermal ice probe.
Nan Zhang +15 more
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Instruments and Methods: A Buoyancy-Stabilized Hot-Point Drill for Glacier Studies
, 1968 Hot-point drills are practical for producing holes in glaciers for ice-thickness and temperature measurements, as well as other glaciological studies. Buoyancy stabilization assures a vertical attitude of the drill and a plumb hole.
Haldor W. C. Aamot
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Journal of Glaciology, 2018 Calving plays a key role in the recent rapid retreat of glaciers around the world. However, many processes related to calving are poorly understood since direct observations are scarce and challenging to obtain.
MASAHIRO MINOWA +4 more
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Thermal conductivity of polar firn
Journal of Glaciology, 2022 The vast Greenland and Antarctic Ice Sheets are covered by many tens of meters of polar firn, which is snow that is years to centuries old and has experienced significant metamorphism. Both ice-sheet modeling and decoding satellite data require knowledge
Simon E. Oster, Mary R. Albert
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